import axios from 'axios'
import store from '@/store'
import { getToken } from '@/utils/auth'
import { Toast } from 'vant';
// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 50000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['Authorization'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 200) {
      if (res.code === 500 ){
        Toast.fail(res.msg);
      }
      if (res.code === 401 ){
        Toast.fail(res.msg);
      }
      // 50008: 不合法的token; 514 token过期
      if (res.code === 508 || res.code === 514) {
        // to re-login
        Toast.fail(res.msg).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.message ))
    } else {
      return res
    }
  },
  error => {

    Toast.fail(error.message)
    return Promise.reject(error)
  }
)

export default service
